C118C
EV/HEV System
C118C is an OBD-II diagnostic trouble code meaning: EV/HEV System. Common causes: high voltage battery fault, problems with voltage converter. Estimated repair cost: $167–556.
Symptoms
- The Check Engine light comes on
- Power reduction
- The car goes into emergency mode
- Battery charging problems
Causes
- High voltage battery fault
- Problems with voltage converter
- Errors in the control module
- Damage to wiring or connectors
How to Fix
- Control module diagnostics
- Checking the condition of the high-voltage battery
- Testing the operation of the voltage converter
- Checking the integrity of wiring and connectors
Related codes
FAQ
What does the C118C code mean?
C118C is an OBD-II diagnostic trouble code that indicates: EV/HEV System
What causes a C118C error code?
The most common causes of C118C include: High voltage battery fault; Problems with voltage converter; Errors in the control module; Damage to wiring or connectors.
How do I fix a C118C diagnostic trouble code?
To fix C118C: Control module diagnostics. Checking the condition of the high-voltage battery. Testing the operation of the voltage converter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C118C?
Limited driving only, diagnose soon
How much does it cost to fix C118C?
The estimated repair cost for C118C is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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